They’re very robust sites, since they were all nuclear hardened. I remember one near me which was fed with underground coax that ran through my town to an under

They’re very robust sites, since they were all nuclear hardened. I remember one near me which was fed with underground coax that ran through my town to an underground facility about 10-20 mikes away. It was always a point of curiosity since the underground lines were prominently marked with grave warnings for anyone approaching it with a backhoe. I imagine it probably carried AUTOVON traffic.